Mantis shrimp

Mantis shrimps are solitary and aggressive marine crustaceans. They are considered the death machines of the sea thanks to their strength. The mantis shrimps attack extremely quickly and their punch has the power of a .22 caliber gun, thanks to this force it's easier for them to break the shells of prey. Needless to say this creature is rarely kept in captivity because their punch could break the glass.
They also have the fastest predatory strike in the ocean making the water that surrounds them to briefly reach the boiling temperature.
Let's not forget that the mantis shrimp has sixteen types of color receptive cones (humans have only three) which allows them to sense different types of colors.